alpha-particle photoabsorption with a realistic nuclear force

Abstract

The 4He total photoabsorption cross section is calculated with the realistic nucleon-nucleon potential Argonne V18 and the three-nucleon force (3NF) Urbana IX. Final state interaction is included rigorously via the Lorentz Integral Transform method. A rather pronounced giant resonance with peak cross sections of 3 (3.2) mb is obtained with (without) 3NF. Above 50 MeV strong 3NF effects, up to 35%, are present. Good agreement with experiment is found close to threshold. A comparison in the giant resonance region is inconclusive, since present data do not show a unique picture.

13 pages, 4 figures; corrected experimental data in Fig.4b and slightly modified discussion of Fig.4b

References in corpus (15)

• Quantum Monte Carlo calculations of nuclei with A \leq 7
• Quantum Monte Carlo calculations of A=8 nuclei
• State Dependent Effective Interaction for the Hyperspherical Formalism
• The alpha-particle based on modern nuclear forces
• Testing Non-local Nucleon-Nucleon Interactions in the Four-Nucleon Systems
• Electron and Photon Scattering on Three-Nucleon Bound States
• Calculation of the Alpha--Particle Ground State within the Hyperspherical Harmonic Basis
• State Dependent Effective Interaction for the Hyperspherical Formalism with Noncentral Forces
• Simultaneous measurement of the photodisintegration of 4He in the giant dipole resonance region
• Photodisintegration of Three-Body Nuclei with Realistic 2N and 3N Forces
• Two-body Photodisintegration of ${}^4$He with Full Final State Interaction
• Benchmark Calculation of the Three-Nucleon Photodisintegration
• Is there a Pronounced Giant Dipole Resonance in ^4He?
• Near-threshold measurement of the 4He(g,n) reaction
• Total 4He Photoabsorption Cross Section Revisited: Correlated HH versus Effective Interaction HH

Cited by in corpus (56)

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• Benchmark calculations for 3H, 4He, 16O and 40Ca with ab-initio coupled-cluster theory
• Modern Ab Initio Approaches and Applications in Few-Nucleon Physics with A \ge 4
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• From bound states to the continuum
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• Ab initio study of the photoabsorption of ${}^4$He
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• Ab initio calculation of nuclear structure corrections in muonic atoms
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• Inclusive electron scattering off 4He
• An efficient method for evaluating energy-dependent sum rules
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• Benchmark calculation of inclusive electromagnetic responses in the four-body nuclear system
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• Monte Carlo Calculation for the neutron-rich Ca isotopes
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• The Auxiliary Field Diffusion Monte Carlo Method for Nuclear Physics and Nuclear Astrophysics
• Ab Initio Theory of Light-ion Reactions
• Self-consistent continuum random phase approximation calculations of ${}^4$He electromagnetic responses
• Electromagnetic Observables in Few-Nucleon Systems
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• Nuclear multipole responses from chiral effective field theory interaction
• Theoretical study of the ${}^4\mathrm{He}(\gamma ,\mathrm{p}{)}^3\mathrm{H}$ and ${}^4\mathrm{He}(\gamma ,\mathrm{n}{)}^3\mathrm{He}$ reactions
• How to increase the applicability of integral transform approaches in physics?
• Electromagnetic Reactions and Few-Nucleon Dynamics
• Few body Calculation of Neutrino Neutral Inelastic scattering on 4He
• Removing center of mass effects in response function and sum rule calculations based on the harmonic oscillator basis